Ball-governor



A. H. SAWTELL.

BALL GOVERNOR.

APPLICATION FILED MAR. 20, 1920.

1,372,557. Patented Mar. 22, 1921.

Fm. a. I A 7 \NVENTOR 'A'TTORNEY ALBERT H. SAWTELLPOE PROVIDENCE, RHODEISLAND.

BALDGOVEItfiOR-l a H. SAw'rEn a To all whom it may concern:

I Be it known that I, ALBERT citizen of the United States, residing atProvidence, in the county of Providence and State of Rhode Island, haveinvented certain new and useful Improvements in Ball-GOV. ernors, ofwhich the following is a specification.

My invention relates to devices for controlling the delivery of silkfrom bobbins, cops, or other packages mounted on textile frames, andis acontinuation of some of the features shown in m pending application Ser.No. 327,463 filed eptember 30, 1919. I y p In the art of silk textilemanufacture the filament formed from the strands is of excessivefineness and is particularly susceptible to breaks and abrasion.

It has been attempted to control delivery by passing the filamentbetween rolls or between a roll and an abutment, but this has causedcrawling or bunching. It has been attempted to control the filament bypassing the same between a ball cofiperating with a seat provided withan orifice,also between a ball and a seathaving an elevated edge, butthe contact of the filament with the boundary of the orifice or with theelevated edge abraded the strands and ultimately broke the filament.

The essential objects ofmy invention are to insure a constant, uniform,and sufficient pressure upon the passing filament and maintain the sameunder an even and certain tension; to prevent the escapeof the filamentfrom beneath the controller ball at all times regardless of the angle atwhich the filament is drawn; to prevent abrasion or breaking thefilament; and to attain these ends in a simple and inexpensivestructure, and one adapted to successful use upon filaments of variedsizes. I I To the above ends primarily my invention consists in suchparts and in such combinations of parts as fall within the scope of theappended claim.

In the accompanying drawings which form a part of this specification;

Figures 1 and 2, are a sideelevation and a top plan view respectively ofone and a preferred form of my invention, and

Fig. 3, a section of the same on line 3-3 of Fig. 2.

Like reference characters indicate like.

parts throughout the views.

The structure in its present and preferred I Specification of LettersPatent.

; Patented Mar- 22.1921

Applicationijfiled m rch 20, 1920. Serial 110.367. 171.

form comprisesa solid block or body 6 car-" fied by abase 7 provildedwith alon'gitudinal channel 9 to receive the; supporting rail. 10 ofateirtilfe frame. Athreaded opening12 in the base receives a clampingscrew13 to engage the rail or bar 10. The body is vertically bored toform a cylindrical cavity 15 terminating near the base of the body in asubstantially hemispherical space 16 con stituting a concave seat 17 fora steel ball 18, preferably of slightly less diameter than the hole 15.i xtending transversely of the body is a horizontal raceway openinglaterally into the space 16 at the lower portion of the seat 17 ,but theapex of the seat is unbroken. The portion of the thread-passage leadingto the rear face of the body is identified as 20, and the portlonleading to the front face of the body is identified as 22. In thisinstance the portion 22 of the thread-passage is enlarged, as at 24 toreceivea porcelain eyelet 25.

The "filament 26 is drawn through the thread-passage from the cop orother passage mounted on the frame or jack of which the bar 15 is a partby the winding beam. In its passage the filament passes beneath the ball18 whose gravity presses the former against the seat 17. The movement ofthe filament rollsthe ball, but the weight of the latter is suflicientto prevent its being elevated out of cooperation with its seat, and theconstructionof the parts issuch that the filament cannot escape thecontinuous and contemporaneous engagement with the ball and seat.'Different sizes and weights of balls-may beused when a greater or lesstension on the thread is required.

The horizontal disposition of the threadpassage through the body, andits mergence with the face ofthe ball seat at the lowest point of thelatter prevents the filament from riding around or escaping above theball, and insures against the filament assuming an inclined position asit approaches or leaves the ball. Hence the location of the spools or ofthe beamabove or below the plane of the ball can in no manner induce anescape of the filament, or a breakage of the same, or an elevation ofthe ball.

The length of filament exposed to the ball j is limited and its courseis immediately below the ball; therefore the gravity pressure of theball upon the interposed filament is constant, uniform, and certain.

The absence of any vertical hole or open ingin the seat 17 avoids theabrasion and prevent, accidental breaking resultant upon-theregistration of the ball with the annular edges of the holes' present inearlier structures. i

It will be observed that the hole 15 constitutes a guideway for the ball18 to its seat 17 and is preferably of such a depth as to escape of theball from the block or body 6. r p v e l 7 Without departing fromth'e'principle of my invention other modes of applying said principlemay be employed instead of the one, explained, 'changebeing made asregards the construction herein disclosed, provided': the means statedby the following claim or the equivalent of such stated means beemployed.

' ALBERT H. SAWTELL.

